2009 2010 JMRI John Lang 1 2013-04-01 JDL Initial version 2 2013-07-10 JDL aspect mapping revisions 2.1 2013-12-30 JDL fixed aspect name reference in appearence files. tweaked aspect mappings 2.2 2015-06-12 JDL added aspect mapping to Held Aspect NYC-1956 Single searchlight dwarf signal As described in the New York Central System publication "Rules of the Operating Department, Effective October 28, 1956." Appearances for a one-searchlight dwarf signal head Limited Clear flashgreen Rule 281C ../../../resources/icons/smallschematics/aspects/NYC-1956/SL-1-low/Rule_281C.gif Limited-Approach flashyellow Rule 281D ../../../resources/icons/smallschematics/aspects/NYC-1956/SL-1-low/Rule_281D.gif Slow-Clear green Rule 287 ../../../resources/icons/smallschematics/aspects/NYC-1956/SL-1-low/Rule_287.gif Restricting yellow Rule 290 ../../../resources/icons/smallschematics/aspects/NYC-1956/SL-1-low/Rule_290.gif Stop red Rule 292 ../../../resources/icons/smallschematics/aspects/NYC-1956/SL-1-low/Rule_292.gif Stop Stop Clear Limited Clear Slow-Clear Advance Approach Medium Limited Clear Slow-Clear Approach Limited Limited Clear Slow-Clear Limited Clear Restricting Limited-Approach Restricting Approach Medium Restricting Advance Approach Restricting Medium Clear Restricting Medium-Advance Approach Restricting Medium-Approach Slow Restricting Approach Slow Restricting Approach Restricting Medium-Approach Restricting Slow-Clear Restricting Slow-Approach Restricting Restricting Restricting Stop and Proceed Limited-Approach Restricting Stop Limited-Approach Held Limited-Approach